EP2629040A2 - Wärmepumpenklimaanlage mit Wärmetauscher mit integriertem Sammler und Unterkühler - Google Patents

Wärmepumpenklimaanlage mit Wärmetauscher mit integriertem Sammler und Unterkühler Download PDF

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Publication number
EP2629040A2
EP2629040A2 EP13153583.3A EP13153583A EP2629040A2 EP 2629040 A2 EP2629040 A2 EP 2629040A2 EP 13153583 A EP13153583 A EP 13153583A EP 2629040 A2 EP2629040 A2 EP 2629040A2
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EP
European Patent Office
Prior art keywords
hot
coolant
heat exchanger
refrigerant
exchanger assembly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP13153583.3A
Other languages
English (en)
French (fr)
Other versions
EP2629040A3 (de
EP2629040B1 (de
Inventor
Prasad Shripad Kadle
Gary Scott Vreeland
Frédérick Vincent Oddi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mahle International GmbH
Original Assignee
Delphi Technologies Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US13/396,211 external-priority patent/US8899062B2/en
Priority claimed from US13/451,841 external-priority patent/US9239193B2/en
Application filed by Delphi Technologies Inc filed Critical Delphi Technologies Inc
Publication of EP2629040A2 publication Critical patent/EP2629040A2/de
Publication of EP2629040A3 publication Critical patent/EP2629040A3/de
Application granted granted Critical
Publication of EP2629040B1 publication Critical patent/EP2629040B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0093—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
    • B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
    • B60H1/00899—Controlling the flow of liquid in a heat pump system
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H1/3204—Cooling devices using compression
    • B60H1/3227—Cooling devices using compression characterised by the arrangement or the type of heat exchanger, e.g. condenser, evaporator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H1/3204—Cooling devices using compression
    • B60H1/3228—Cooling devices using compression characterised by refrigerant circuit configurations
    • B60H1/32284—Cooling devices using compression characterised by refrigerant circuit configurations comprising two or more secondary circuits, e.g. at evaporator and condenser side
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30—Arrangement or mounting of heat-exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—Condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
    • F28D9/005—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both heat-exchange media
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/044—Condensers with an integrated receiver
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/047—Water-cooled condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/12—Inflammable refrigerants
    • F25B2400/121—Inflammable refrigerants using R1234
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B25/00—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
    • F25B25/005—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00 using primary and secondary systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B40/00—Subcoolers, desuperheaters or superheaters
    • F25B40/02—Subcoolers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
    • F28D2021/007—Condensers

Definitions

  • the present disclosure relates to a heating and air-conditioning system for an automotive vehicle; particularly, to a heat pump air-conditioning system; still more particularly, to a heat exchanger for a heat pump air-conditioning system.
  • motor vehicles typically include dedicated air-conditioning systems and heating systems.
  • the heating system includes a heater core located inside a heating, ventilating, and air conditioning (HVAC) module of the vehicle.
  • HVAC heating, ventilating, and air conditioning
  • the heater core is typically a liquid-to-air heat exchanger that supplies thermal energy to the passenger compartment for comfort heating.
  • a heat transfer liquid such as a glycol based coolant, conveys waste heat from an internal combustion engine to the heater core where the thermal energy from the heat transfer liquid is transferred to the ambient air flowing through the heater core to the passenger compartment.
  • a typical motor vehicle air-conditioning system includes an evaporator located in the HVAC module and a condenser located in the front engine compartment exposed to outside ambient air.
  • a compressor circulates a two-phase refrigerant through the evaporator where it expands into a low pressure vapor refrigerant by absorbing heat from the passenger compartment. After the low pressure vapor is compressed to a high pressure vapor by the compressor, the vapor phase refrigerant is transferred to the condenser where the high pressure vapor is condensed into a high pressure liquid refrigerant by releasing the heat to the ambient air.
  • the liquid phase is returned to the evaporator through an expansion device which converts the high pressure liquid refrigerant to a low pressure mixture of liquid and vapor refrigerant to continue the cycle.
  • the air-conditioning system in heat pump mode, the refrigerant flow is reversed, in which case the condenser absorbs heat from the outside ambient air by evaporating the liquid phase refrigerant and the evaporator releases the heat to the passenger compartment by condensing the vapor phase refrigerant.
  • Electric heaters are known to be used to provide supplemental heat to the passenger compartment for vehicles using the air-conditioning system as a heat pump. In the coldest of climates, it is known that operating the air-conditioning system in heat pump mode is ineffective; therefore, additional electric heaters are required. However, for hybrid and electrical vehicles, electrical heaters represent an increased current draw that significantly reduces the electric drive range.
  • the present invention relates to Unitary Heat Pump Air Conditioner (Unitary HPAC) for a Unitary HPAC System.
  • the Unitary HPAC includes a hot-side heat exchanger assembly having a plurality of plates stacked and hermetically sealed between an upstream end plate and a downstream end plate.
  • the plurality of stacked plates define a condenser/chiller portion adjacent the upstream end plate, a sub-cooler portion adjacent the downstream end plate, and a refrigerant receiver portion sandwiched between the condenser/chiller portion and the sub-cooler portion.
  • the upstream end plate includes a refrigerant inlet and a hot coolant outlet
  • the downstream end plate includes a refrigerant outlet, a hot coolant inlet, a sub-cooler coolant inlet and a sub-cooler coolant outlet.
  • the hot-side heat exchanger assembly includes a refrigerant passageway in hydraulic communication with the refrigerant inlet and the refrigerant outlet, a first coolant passageway in hydraulic communication with the hot coolant inlet and the hot coolant outlet, and a second coolant passageway in hydraulic communication with the sub-coolant inlet and the sub-coolant outlet.
  • the first coolant passageway and the second coolant passageway are in non-contact thermal communication with the refrigerant passageway.
  • the unitary HPAC may include a cold-side heat exchanger assembly having a refrigerant inlet in hydraulic communication with the refrigerant outlet of hot-side heat exchanger assembly and a refrigerant outlet in hydraulic communication with the refrigerant inlet of hot-side heat exchanger assembly.
  • the unitary HPAC may further include an electrically driven compressor for circulating a refrigerant through the cold-side heat exchanger assembly and the hot-side heat exchanger assembly such that heat energy is transferred from the cold-side heat exchanger assembly to the hot-side heat exchanger assembly, an electrically driven hot side coolant pump in hydraulic communication with the coolant inlet of hot-side heat exchanger assembly, and an electrically driven cold side coolant pump in hydraulic communication with a coolant inlet of the cold-side heat exchanger assembly.
  • an electrically driven compressor for circulating a refrigerant through the cold-side heat exchanger assembly and the hot-side heat exchanger assembly such that heat energy is transferred from the cold-side heat exchanger assembly to the hot-side heat exchanger assembly
  • an electrically driven hot side coolant pump in hydraulic communication with the coolant inlet of hot-side heat exchanger assembly
  • an electrically driven cold side coolant pump in hydraulic communication with a coolant inlet of the cold-side heat exchanger assembly.
  • An embodiment of the invention provides a Unitary HPAC that is compact and easily installed in virtually any compartment of a vehicle that is about the size a typical bread box.
  • the Unitary HPAC scavenges heat from waste heat sources, such as the vehicle electronics, and use the waste heat to supplement the heating needs of the passenger compartment.
  • the Unitary HPAC improves the driving ranges in cold climates by minimizing the use of electric current to power electric heaters and providing heat to the battery packs to maintain an optimal operating temperature.
  • Fig. 1 a schematic flow diagram for a Unitary Heat Pump Air Conditioner (Unitary HPAC) System having a Unitary HPAC in accordance with the invention.
  • Unitary HPAC Unitary Heat Pump Air Conditioner
  • Fig. 2 shows an embodiment of the Unitary HPAC in accordance with the invention.
  • Fig. 3 is a cross-section of the hot-side heat exchanger assembly of Fig. 2 having an integral condenser/chiller portion, receiver portion, and sub-cooler portion taken along lines 3-3 showing the path of refrigerant flow.
  • Fig. 4 is a cross-section of the hot-side heat exchanger assembly of Fig. 2 taken along lines 4-4 showing the path of the hot-side coolant flow.
  • Unitary Heat Pump Air Conditioner (Unitary HPAC) System 10 and an embodiment of a Unitary HPAC 100 for use in a motor vehicle.
  • the motor vehicle may be that of one with an internal combustion engine, a hybrid vehicle having both an internal combustion engine and an electric drive, or that of an electric vehicle having an electric drive.
  • the Unitary HPAC System 10 includes a Unitary HPAC 100 that is compact and easily installed in virtually any compartment of the vehicle that is about the size of a bread box or larger. Further advantages of the Unitary HPAC System 10 will be readily appreciated by the reading of the disclosure below.
  • FIG. 1 Shown in Fig. 1 is flow schematic of the Unitary HPAC System 10 having a dedicated refrigerant loop 12 in thermal communication with a cold coolant loop 14 and a hot coolant loop 16.
  • the cold coolant loop 14 conveys waste heat energy away from a heat source 40 within the vehicle, such as the waste heat from the internal combustion engine or electronics, thereby cooling the heat source 40.
  • the refrigerant loop 12 transfers the heat energy from the cold coolant loop 14 to the hot coolant loop 16, which in turn conveys the heat energy to a heat sink 42, such as an occupant heat exchanger to provide supplemental heat to the passenger compartment.
  • the Unitary HPAC System 10 effectively captures waste heat energy from one part of the vehicle and puts it to beneficial use within another part of the vehicle.
  • the heat sink 42 may be a radiator type heat exchanger exposed to the outside ambient air where the waste heat is dissipated to the external environment.
  • the flow paths of the cold and hot coolant loops 14, 16 throughout the vehicle may be reconfigured based on the cooling and heating needs of the vehicle.
  • the cold and hot coolant loops 14, 16 may include a myriad of interconnecting branches with remotely activated valves at strategic nodes that may be reconfigured to redefine the flow paths of the cold and hot coolant loops 14, 16 to selectively provide cold or hot coolant flows to multiple designated heat sources 40 or heat sinks 42, respectively.
  • the refrigerant loop 12 includes a condenser 18, a refrigerant receiver 19, a sub-cooler 21, a refrigerant expansion device 20, and an evaporator 22 hydraulically connected in series.
  • a refrigerant compressor 24 located downstream of the evaporator 22 and upstream of the condenser 18. The compressor 24 is responsible for compressing and transferring a two-phase refrigerant, such as R-134a or R-1234yf, throughout the refrigerant loop 12 of the Unitary HPAC System 10.
  • the compressor cycles the refrigerant through the refrigerant loop 12 to transfer heat energy from the cold coolant loop 14, which includes a cold side chiller 30, to the hot coolant loop 16, which includes a hot side chiller 26.
  • the hot side chiller 26 and cold side chiller 30 may be that of a water or coolant jacket encasing the condenser 18 and evaporator 22, respectively, or may be part of a plate-type heat exchanger assembly, which is disclosed in greater detail below.
  • the refrigerant cycle of the refrigerant loop 12 is typically the same as that of a dedicated air conditioning system of a motor vehicle operating in cooling mode.
  • a two phase refrigerant is circulated through the refrigerant loop 12 by the compressor 24, which includes a suction side 36, also referred to as the low pressure side, and a discharge side 38, also referred to as the high pressure side.
  • the suction side of the compressor receives a low pressure vapor phase refrigerant from the evaporator 22, after absorbing heat from the cold coolant loop 14 by way of the cold side chiller 30, and compresses it to a high pressure vapor phase refrigerant, which is then discharged to the condenser 18.
  • the high pressure vapor phase refrigerant is condensed to a high pressure liquid phase refrigerant in the condenser 18, heat is transferred to the hot coolant loop 16 by way of the hot side chiller 26.
  • the high pressure liquid phase refrigerant passes through the refrigerant receiver 19 to separate any refrigerant vapor, the sub-cooler 21 to further cool the liquid phase refrigerant, and then to the refrigerant expansion device 20, through which the refrigerant begins to expand into a mixture of a bubbling gas-liquid phase.
  • the bubbling gas-liquid phase refrigerant enters the evaporator 22 and continues to expand into the low pressure vapor refrigerant by absorbing heat from the cold coolant loop 14.
  • the low pressure high quality/superheated vapor refrigerant is then cycled back to the suction side 36 of the compressor 24 to repeat the process.
  • the cold coolant loop 14 includes the cold side chiller 30 in non-contact thermal communication with the evaporator 22 and a cold side coolant pump 32 that circulates a cold side coolant 50 through the cold side chiller 30. As the refrigerant expands within the evaporator 22, heat energy is transferred from the cold coolant loop 14 to the refrigerant loop 12.
  • the hot-coolant loop 16 includes the hot side chiller 26 in non-contact thermal communication with the condenser 18 and a hot side coolant pump 28 that circulates a hot side coolant 48 through the hot side chiller 26.
  • the hot side coolant 48 flowing in the hot-coolant loop 16 is split into a first portion hot side coolant 48a and a second portion hot side coolant 48b.
  • the hot side coolant pump 28 circulates the first portion hot side coolant 48a through the hot side chiller 26 and the second portion of the hot side coolant 48b through the sub-cooler 21.
  • the first portion hot side coolant 48a flows directly through both the sub-cooler 21 and receiver 19 into the hot-side chiller 26, within which heat energy is transferred from the higher temperature refrigerant to the lower temperature first portion of the hot side coolant 48.
  • the heated first portion hot side coolant 48a exits the hot-side chiller 26 into the heat sink 42.
  • the second portion hot side coolant 48b flows through the sub-cooler 21 to further cool the liquid phase refrigerant. After exiting the sub-cooler 21, the second portion hot side coolant 48b joins the first portion of the hot side coolant 48a before flowing into the heat sink 42.
  • an embodiment of the invention includes an integrated hot-side heat exchanger assembly 102 having a condenser/chiller portion 103, a receiver portion 104, and a sub-cooler portion 106 manufactured from a plurality of stamped metal plates.
  • the integrated hot-side heat exchanger assembly 102 may also include an internal heat exchanger (IHX) as disclosed in U.S. Patent Application No. 13/396,211 .
  • An embodiment of the invention may also include a cold-side heat exchanger assembly 110 having an integral evaporator/chiller portion also manufactured from a plurality of stamped metal plates.
  • the Unitary HPAC 100 shown includes a hot-side heat exchanger assembly 102, a refrigerant expansion device such as a thermal expansion valve (TXV) 108, and a cold-side heat exchanger assembly 110.
  • the Unitary HPAC 100 also includes an electrically driven compressor 112 for the circulation of a typical two-phase refrigerant through a series of refrigerant tubes 113 and electrically driven cold side and hot side coolant pumps 114, 116 configured to hydraulically connect to the cold coolant loop and hot coolant loop 14, 16, respectively.
  • the compressor 112 may be that of a compact scroll compressor driven by a permanent magnet motor with neodymium magnets.
  • the liquid coolant used in the hot and coolant loops is generally a mixture of 70% glycol-30% water, which prevents the coolant from freezing or becoming too viscous at the low temperatures needed in the cold-side heat exchanger assembly 110.
  • the hot-side heat exchanger assembly 102 may be that of a plate-type heat exchanger assembly having a plurality of stamped metal plates 120 stacked and brazed between an upstream end plate 126 and a downstream end plate 128, with respect to the direction of refrigerant flow, to define a condenser/chiller portion 103, a receiver portion 104, and a sub-cooler portion 106.
  • the upstream end plate 126 includes a refrigerant inlet 130 and a hot coolant outlet 134.
  • the downstream end plate 128 includes a refrigerant outlet 132, a hot coolant inlet 136, a sub-cooler hot coolant inlet 135, and a sub-cooler hot coolant outlet 137.
  • the stamped metal plates include features known to those of ordinary skill in the art, such as openings 121, bosses 123 about selected openings 121, and flanges 125, which when stacked, define a tortuous refrigerant passageway 122 for high pressure refrigerant flow from the refrigerant inlet 130 to the refrigerant outlet 132.
  • the stacked plates also define a hot coolant header 131 that extends from the hot-coolant inlet 135 through both the sub-cooler portion 106 and receiver portion 104, a first hot coolant passageway 124a through the condenser/chiller portion 103 in fluid communication with the hot coolant header 131 and hot coolant outlet 134, and a second hot coolant passageway 124b through the sub-cooler portion 106 in fluid communication with the sub-cooler hot coolant inlet 135 and sub-cooler hot coolant outlet 137.
  • the plates 120 may include numerous contact points established between adjacent plates to induce turbulence to the fluids flowing therethrough to provide a high heat transfer co-efficient.
  • the flows of the hot refrigerant and hot coolants through the hot-side heat exchanger assembly 102 are in non-contact thermal communication; in other words, the hot coolants 48a, 48b and refrigerant are not intermingled, but are in thermal communication with each other. Heat energy from the higher temperature refrigerant is transferred to the lower temperature hot coolants 48a,48b, thereby increasing the temperature of the hot coolant 48 as it leaves the hot-side heat exchanger assembly 102 returning to the hot coolant loop 16.
  • Fig. 3 Shown in Fig. 3 is the flow path of the refrigerant passageway 122 through the hot-side heat exchanger assembly 102.
  • the high pressure vapor refrigerant enters the refrigerant inlet 130, flows through the tortuous refrigerant passageways 122 within the condenser/chiller portion 103 and condenses into a liquid phase refrigerant as heat is transferred from the hotter refrigerant to the cooler hot-coolant flow.
  • the substantially liquid phase refrigerant exits the condenser/chiller portion 103, enters the top of the receiver portion 104 and then exits the bottom of the receiver portion 104 in the sub-cooler portion 106, with respect to the direction of gravity.
  • the vapor phase refrigerant remains within the top portion of the receiver portion 104, while the liquid phase refrigerant flows through the refrigerant passageway 122 within the sub-cooler portion 106 before exiting through the refrigerant outlet 132 to the TXV 108.
  • Shown in Fig. 4 is the flow path of the first and second hot coolant passageways 124a, 124b through the hot-side heat exchanger assembly 102.
  • the hot side coolant pump 116 circulates a first portion hot side coolant 48a through the condenser/chiller portion 103 and a second portion side coolant 48b through the sub-cooler portion106.
  • the first portion hot side coolant 48a enters the hot coolant inlet 136 and flows through the hot coolant header 131 directly into the condenser/ chiller portion 103.
  • the heated first portion hot side coolant 48a exits the condenser/ chiller portion 103 into the heat sink 142.
  • the second portion hot side coolant 48b flows through the second hot coolant passageway 124b within the sub-cooler portion 106 and joins the first portion hot side coolant 48a before flowing into the heat sink 142.
  • the integral cold-side heat exchanger assembly 110 may also be plate-type heat exchangers.
  • the integral cold-side heat exchanger assembly 110 includes a cold coolant inlet 138 and outlet 140, an evaporator refrigerant passageway for low pressure refrigerant flow, and a separate cold coolant passageway for cold coolant flow.
  • the flows of the low pressure refrigerant and cold coolant through the integral cold-side heat exchanger assembly 110 are also in non-contact thermal communication with each other, and may be concurrent or countercurrent flow. Heat energy from the higher temperature cold coolant is transferred to the lower temperature evaporating refrigerant, thereby decreasing the temperature of the cold coolant as it leaves the integral cold-side heat exchanger assembly 110 and returning to the cold coolant loop 14.
  • the components of the Unitary HPAC 100 including the hot-side heat exchanger assembly 102, TXV 108, integral cold-side heat exchanger assembly 110, and electrically driven compressor 112 and coolant pumps 114, 116 may be all mounted onto a single platform 142 measuring approximately 420 mm by 290 mm.
  • the components may be enclosed a housing, having a similar sized base and a height of about less than 190 mm, which is approximately the size of a typical bread box, for ease of handling and protection against the environment.
  • the centralized location of the components that form the Unitary HPAC 100 allows the use of shorter length refrigerant tubes 113 which are manufactured from a refrigerant impermeable material, such as stainless steel, aluminum, and/or copper.
  • the shorten length refrigerant impermeable tubes 113 minimizes refrigerant leaks and moisture infiltration; thereby allowing the use of a smaller volume receiver portion 104, since a large volume of reserve refrigerant is not required.
  • the reduction of moisture infiltration reduces or eliminates the volume of desiccant needed, resulting in a more compact Unitary HPAC 100. Due to its compact size, the Unitary HPAC 100 may be installed in virtually any location within the body of a motor vehicle that can fit a bread box, such as within the trunk, under the hood, within the dashboard, or even under the seats.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP13153583.3A 2012-02-14 2013-02-01 Wärmepumpenklimaanlage mit Wärmetauscher mit integriertem Sammler und Unterkühler Active EP2629040B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/396,211 US8899062B2 (en) 2011-02-17 2012-02-14 Plate-type heat pump air conditioner heat exchanger for a unitary heat pump air conditioner
US13/451,841 US9239193B2 (en) 2011-02-17 2012-04-20 Unitary heat pump air conditioner having a heat exchanger with an integral receiver and sub-cooler

Publications (3)

Publication Number Publication Date
EP2629040A2 true EP2629040A2 (de) 2013-08-21
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DE102014113526A1 (de) 2014-09-19 2016-03-24 Halla Visteon Climate Control Corporation Klimatisierungssystem für ein Kraftfahrzeug
DE102015103681A1 (de) 2015-03-13 2016-09-15 Halla Visteon Climate Control Corporation Klimatisierungssystem eines Kraftfahrzeugs und Verfahren zum Betreiben des Klimatisierungssystems
EP3136034A4 (de) * 2014-04-25 2017-06-07 Panasonic Intellectual Property Management Co., Ltd. Wärmetauscher
CN109383217A (zh) * 2017-08-09 2019-02-26 现代自动车株式会社 用于车辆的集中式能量模块
CN111006417A (zh) * 2020-01-06 2020-04-14 林泳鑫 一种新能源汽车水冷式冷凝器
WO2020239533A1 (fr) * 2019-05-27 2020-12-03 Valeo Systemes Thermiques Bouteille pour condenseur a eau de vehicule automobile
CN112384393A (zh) * 2018-07-09 2021-02-19 翰昂汽车零部件有限公司 特用于电动车辆的紧凑型热交换器单元和空气调节模块
FR3111971A1 (fr) * 2020-06-29 2021-12-31 Valeo Systemes Thermiques Echangeur thermique pour véhicule automobile
FR3111975A1 (fr) * 2020-06-30 2021-12-31 Valeo Systemes Thermiques Echangeur de chaleur monobloc comprenant au moins deux blocs d’échange de chaleur
DE102017109311B4 (de) 2017-05-02 2022-04-21 Hanon Systems Vorrichtung für ein Klimatisierungssystem eines Kraftfahrzeugs sowie Verfahren zum Betreiben der Vorrichtung
EP4144549A1 (de) * 2021-09-03 2023-03-08 Valeo Klimasysteme GmbH Heiz- und/oder kühlbehandlungsmodul für ein fahrzeug
DE102022200696A1 (de) 2022-01-21 2023-07-27 Mahle International Gmbh System für ein Kraftfahrzeug
WO2023198872A1 (fr) * 2022-04-15 2023-10-19 Valeo Systemes Thermiques Echangeur de chaleur interne à plaques

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EP2629040B1 (de) * 2012-02-14 2020-07-29 MAHLE International GmbH Wärmepumpenklimaanlage mit Wärmetauscher mit integriertem Sammler und Unterkühler

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FR2861166B1 (fr) * 2003-10-21 2006-11-24 Valeo Climatisation Echangeur de chaleur utilisant un fluide d'accumulation
EP1616610B1 (de) * 2004-07-13 2012-07-25 Byeong-Seung Lee Plattenwärmetauscher mit Kondensatabführung und Verfahren zur seiner Herstellung
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FR2950682B1 (fr) * 2009-09-30 2012-06-01 Valeo Systemes Thermiques Condenseur pour vehicule automobile a integration amelioree
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EP2629040B1 (de) * 2012-02-14 2020-07-29 MAHLE International GmbH Wärmepumpenklimaanlage mit Wärmetauscher mit integriertem Sammler und Unterkühler

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3136034A4 (de) * 2014-04-25 2017-06-07 Panasonic Intellectual Property Management Co., Ltd. Wärmetauscher
US10040334B2 (en) 2014-09-19 2018-08-07 Hanon Systems R744 based heat pump system with a water cooled gas cooler for cooling, heating and dehumidification of an EV/HEV
DE102014113526A1 (de) 2014-09-19 2016-03-24 Halla Visteon Climate Control Corporation Klimatisierungssystem für ein Kraftfahrzeug
US10571164B2 (en) 2015-03-13 2020-02-25 Hanon Systems Air-conditioning system of a motor vehicle and method for operating the air-conditioning system
DE102015103681A1 (de) 2015-03-13 2016-09-15 Halla Visteon Climate Control Corporation Klimatisierungssystem eines Kraftfahrzeugs und Verfahren zum Betreiben des Klimatisierungssystems
DE102017109311B4 (de) 2017-05-02 2022-04-21 Hanon Systems Vorrichtung für ein Klimatisierungssystem eines Kraftfahrzeugs sowie Verfahren zum Betreiben der Vorrichtung
CN109383217A (zh) * 2017-08-09 2019-02-26 现代自动车株式会社 用于车辆的集中式能量模块
CN112384393A (zh) * 2018-07-09 2021-02-19 翰昂汽车零部件有限公司 特用于电动车辆的紧凑型热交换器单元和空气调节模块
US11613156B2 (en) 2018-07-09 2023-03-28 Hanon Systems Compact heat exchanger unit and air conditioning module particularly for electric vehicle
EP3822101A4 (de) * 2018-07-09 2022-03-16 Hanon Systems Kompakte wärmetauschereinheit und klimamodul, insbesondere für ein elektrofahrzeug
WO2020239533A1 (fr) * 2019-05-27 2020-12-03 Valeo Systemes Thermiques Bouteille pour condenseur a eau de vehicule automobile
FR3096764A1 (fr) * 2019-05-27 2020-12-04 Valeo Systemes Thermiques Bouteille pour condenseur a eau de vehicule automobile
CN111006417A (zh) * 2020-01-06 2020-04-14 林泳鑫 一种新能源汽车水冷式冷凝器
FR3111971A1 (fr) * 2020-06-29 2021-12-31 Valeo Systemes Thermiques Echangeur thermique pour véhicule automobile
WO2022002617A1 (fr) * 2020-06-29 2022-01-06 Valeo Systemes Thermiques Echangeur thermique pour véhicule automobile
FR3111975A1 (fr) * 2020-06-30 2021-12-31 Valeo Systemes Thermiques Echangeur de chaleur monobloc comprenant au moins deux blocs d’échange de chaleur
WO2022002619A1 (fr) * 2020-06-30 2022-01-06 Valeo Systemes Thermiques Echangeur de chaleur monobloc comprenant au moins deux blocs d'échange de chaleur
EP4144549A1 (de) * 2021-09-03 2023-03-08 Valeo Klimasysteme GmbH Heiz- und/oder kühlbehandlungsmodul für ein fahrzeug
DE102022200696A1 (de) 2022-01-21 2023-07-27 Mahle International Gmbh System für ein Kraftfahrzeug
WO2023198872A1 (fr) * 2022-04-15 2023-10-19 Valeo Systemes Thermiques Echangeur de chaleur interne à plaques
FR3134620A1 (fr) * 2022-04-15 2023-10-20 Valeo Systemes Thermiques Echangeur de chaleur interne à plaques.

Also Published As

Publication number Publication date
EP2629040A3 (de) 2018-04-11
CN103245016A (zh) 2013-08-14
CN103245016B (zh) 2017-09-05
EP2629040B1 (de) 2020-07-29
CN203432005U (zh) 2014-02-12

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